Connect Greysheet API Keys

Step-by-step instructions

1. 1 Get Greysheet Dealer+ credentials

   Log in at greysheet.com with your dealer account. Subscribe to or confirm your Dealer+ plan includes API access. Navigate to your account settings or API section.

2. 2 Copy your API key

   On the Greysheet account page, find the field labeled API Key. Highlight the entire key and copy it (Ctrl+C or Cmd+C). Do not share this key — it is tied to your subscription.

3. 3 Copy your API token

   On the same page, find the field labeled API Token or Token. Copy the full token string. You need both the key and token for SpotPro.

4. 4 Open POS Config in SpotPro

   In the SpotPro left sidebar, click Configuration → Point of Sale Config. Scroll down until you see the Greysheet API section.

   

5. 5 Paste the API key

   Click the box labeled API Key. Paste your key (Ctrl+V or Cmd+V). Confirm no extra spaces were added at the beginning or end.

6. 6 Paste the API token

   Click the box labeled API Token or Token. Paste your token exactly as Greysheet provided it.

7. 7 Set wholesale discount (if shown)

   If a wholesale discount field appears, type the percentage below Greysheet bid that you typically pay when buying — for example, 20 for 20% below bid. This drives suggested buy prices in lookups and NumisNexus.

8. 8 Click Save

   Scroll to the bottom of the Greysheet API section. Click Save. Wait for the green confirmation message.

9. 9 Test Coin Price Lookup

   Click Apps → Greysheet Lookup in the sidebar. Type Morgan dollar in the search box and press Enter. Grade rows with bid/ask values should appear within seconds.

   

10. 10 Test in NumisNexus

    Open Apps → NumisNexus and add a collectible line with a Greysheet catalog number. Bluebook, Grey Sheet bid, and suggested buy should appear next to your offer.